Author Name

I am using the theme SongWriter. The theme designer added some text next to the author’s username on the comments page. It displays the username of the person who left the comment, then displays this other static text.

I want to change/remove the text, but I can’t figure out where it’s at. I’ve searched comments.php, and several other files looking for the static text but it appears in none of them.

Here is a link to a page with a comment: https://www.6ohm.com/cities-for-the-people/

You can see it says “Ken (Post author)”. I want to change “Post author” to something else.

How can I edit that text?

Thanks!